Hydraulic press.



H. N1. AUSTINJR. Hvnmxuuc PRESS. APPUQAUON FILED APR.1. 915- Patented Aug. 2%), 1916.

mgm-M wia/Www@ HARRY AUSTN, IR., OF DETRQKT, MICHIGAN, ASSGNUR T0 META'LWOOD IVINUFAC# TUNING COMFANZ', OIF DETRT, MICHGAN, A CORPORATION OF MICHIGAN.

HYDRAULIC PRESS. I

rieaeea man-m Specification of Letters Patent.

rateatea aug. agitare.

Application filed. April- 1, i915. Serial No. 18,519. y

and State of Michigan, have invented cer-- tain new and useful lmprovements inlrlydraulic Presses, of which the following is a specification, reference Vbeing had therein to the accompanying drawings.

The invention relates to hydraulic presses and more particularly to hydraulic presses designed for forcing mandrels7 shafts, etc., into and out of ho-llow objects including wheels, etc., and has for its object the obtaining of alconstrnction which may be quickly adaptedfor a wide range of work.

lt is a further object to provide means for operating thev press either by power or by hand.

ln the drawings: the figure is a perspective view ofthe press.`

ln the use of hydraulic presses it is trequently necessary to change the clearance space between the retracted plunger and the bed for-supporting the work. As the pressure exerted is frequently very high, strong and rigid connections between the bed and the plunger cylinder are necessary, and

where these connections are adjustable in length their strength and rigidity are impaired. To avoid this objection l have devised a construction of press with a ixed 4connection between the plunger cylinder and the bed, providing the maximum clear-v ance required tor the work to be performed and have further provided one or more super-beds permanently mounted upon the press and adjustable into and out of operative relation with-the plunger.

ln de taiL-r is the bed mounted upon suitable standardsB and provided with the vertical posts C at opposite sides thereof, tothe 4upper ends of which is connected a cross head l) carrying the cylinder E 'for the plungerv F. rthe bed A is preferably formed with a central aperture G and a surround ing annularnportion H on which the work is supported.

l are counterweights connected by ileXible cables J running over sheaves with a cross head L on the plunger.

M is a bracket at the side of the bed on which is mounted the hydraulic 'pump and liquid reservoir N, the plunger O of the pump being operated by a` pitman P connected with an eccentric Q on a power shaft R. The pitman P is connected to the pump plunger l) by a swiveled knuckle connectm S provided with a detachable pivot pm T is a liquid conduit leading from the pump and liquid reservoir N of the press,

and T is a laterally-projecting studon the conduit T adapted to beused as a fulcrum for a hand lever, the arrangement being such that by detaching the pin S and turning the swivel knuckle S it may be engaged-I with the lever to operate the pump by hand. ToA permit of adjusting the press to vary the clearance between the plunger and the bed and at the same time to maintain the rigidity .ot the structure l have provided one or more laterally-removable 'superbeds V. These beds are formed with central U- shaped portions movable into registration with the annular portion H on the bed and projecting oppositely from said lll-shaped portions are arms V and V2 forengaging the opposite posts C C. .The arm V is preferably provided with a sleeve fitting upon the post C and forming a hinge or knuckle upon which the member V may be swung into 0r out of registration with the bed. The opposite arm V2 is bifurcated to embrace the post C and may be secured thereto by a cotter-pin VV or other locking device.

With the construction as described in use, where the full clearance of the press is required the members V are swun outward upon their knuckle connections so as to clear the bed A and to leave an unobstructed space between the same and the plunger F. lf, on the other hand, a lesser clearance is required, one or more of the members V may be swung into registration with the bed A and locked in this position to the post C by the 'cotter-pin W. When thus in registration the. lower face of the lowest member V will rest irmly upon the annular portionH of the bed, with theslot formed by the U registering with the central aperture G. ln

= the same manner each succeeding super-bed `v taking, but as they are supported and hinged With a plunger and cylinder therefor, of a bed, posts forming rigid connections between said bed and cylinder on opposite sides thereof, a superbed.swiveled upon one of said posts adapted to be swung into and out of registration with the main bed, and means for locking said super-bed to the second post when in yregistration with said main bed.

Y, 2. In a hydraulic press, the combination with a plunger and cylinder therefor, of a bed centrally apertured in alinement with said plunger, 'posts forming a rigid con'nee .tlon between said bed and cylinder, a super-y bed having a supporting arm swiveled' on ,one of said posts, the central portion of said super-bed being cut away to form an open slot for registration with the aperture inthe mainbed, and an arm on said superbed bifurcated to embrace the opposite post.

3. In a hydraulic press, the combination with a'plunger and a cylinder therefor, of a bed, posts forming a rigid connection between said bed and cylinder on opposite sides thereof, a series of super-beds swiveled upon one of said posts and movable thereon successively into registration with the main bed to change the clearance, and means associated with' another of said posts for' maintaining the super-beds in registration with Athe main bed.

4. In a hydraulic press, the combination ,with a plunger and a cylinder therefor', of

a bed centrally apertured in alinement with said plunger and having a surrounding annular portion with oppositely-projecting arms, posts extending upward from said oppositely-projectinfg arms and forming a rigid connection between said bed andl said cylinder, and a series of super-beds having U-shaped central portions and oppositclyextending arms, one of the arms of each super-bed being swiveled upon one of said posts and the opposite arm being movable into engalgelnent with the other lpost to bring said super-bed inregistration with the main bed.

In testimony whereof I aiiix lny signature in presence of two witnesses.

` HARRY M. AUSTIN, JR. Witnesses:

JAMES P. BARRY, HENRIETTA E. BowMAN. 

